In 1992, the Elements Working Group began developing standards for the collection of population inventory data about elements of British Columbia’s terrestrial biodiversity. As the result of meetings between an assortment of wildlife biologists, the province’s biodiversity was divided into 32 element groupings, and inventory methods and standards were developed around each of these, as well as for 5 additional topics relevant to biodiversity inventory. Manuals in the series are available for free via the Internet, and provide an obvious resource for biologists studying species at risk. In addition, developing methods for such a wide array of species has highlighted some of the general limitations of wildlife inventory, particularly for species that are rare or endangered.
Quayle, James F., Westereng, Leah K.. 1999. Methods or Madness? Developing Population Inventory Manuals for British Columbia's Biodiversity (in Proc. Conference Biology & Management of Species and Habitats at Risk). Ministry of Environment, Lands and Parks. Proceedings - Conference Biology & Management. Vol. 1